At some future juncture, we’re going to need more living space, whether it be found on another planet or through the expanse of our planet’s existing surface area. In his latest venture into worldbuilding, Oxford University research fellow Anders Sandberg explores some of the more extreme possibilities.»6/23/15 12:52pm 6/23/15 12:52pm

By next March, a 220-floor skyscraper will stand in Changsha that will measure 838 meters (2,749 feet) in height, what will be the world's tallest building. And amazingly, construction hasn't even begun. While it took Dubai more than five years to build the Burj Khalifa building — what is currently the world's… »11/22/12 6:30am 11/22/12 6:30am

As a future terraforming species, we take it for granted that Mars will be our first megaproject. But while transforming the Red Planet into something more hospitable for life seems the most logical — if not easiest — first step towards colonizing the solar system, it may actually make more sense to tackle our sister… »10/11/12 9:00am 10/11/12 9:00am

Novelist Neal Stephenson wants to create a 20-kilometer space tower, which could inspire people to believe in innovation again — but also transform the way we travel in the air and into space. »9/11/12 4:30pm 9/11/12 4:30pm